[PATCH iwl-next v2 7/7] i40e: Add and use helper to reconfigure TC for given VSI

Ivan Vecera
2024-03-27T07:57:59Z

Add helper i40e_vsi_reconfig_tc(vsi) that configures TC
for given VSI using previously stored TC bitmap.

Effectively replaces open-coded patterns:

enabled_tc = vsi->tc_config.enabled_tc;
vsi->tc_config.enabled_tc = 0;
i40e_vsi_config_tc(vsi, enabled_tc);

Reviewed-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 31 +++++++++++++++------
1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 2e1955064abb..6c25d02ea05e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5924,6 +5924,27 @@ static int i40e_vsi_config_tc(struct i40e_vsi *vsi, u8 enabled_tc)
return ret;
}

+/**
+ * i40e_vsi_reconfig_tc - Reconfigure VSI Tx Scheduler for stored TC map
+ * @vsi: VSI to be reconfigured
+ *
+ * This reconfigures a particular VSI for TCs that are mapped to the
+ * TC bitmap stored previously for the VSI.
+ *
+ * NOTE:
+ * It is expected that the VSI queues have been quisced before calling
+ * this function.
+ **/
+static int i40e_vsi_reconfig_tc(struct i40e_vsi *vsi)
+{
+ u8 enabled_tc;
+
+ enabled_tc = vsi->tc_config.enabled_tc;
+ vsi->tc_config.enabled_tc = 0;
+
+ return i40e_vsi_config_tc(vsi, enabled_tc);
+}
+
/**
* i40e_get_link_speed - Returns link speed for the interface
* @vsi: VSI to be configured
@@ -14290,7 +14311,6 @@ static struct i40e_vsi *i40e_vsi_reinit_setup(struct i40e_vsi *vsi)
struct i40e_vsi *main_vsi;
u16 alloc_queue_pairs;
struct i40e_pf *pf;
- u8 enabled_tc;
int ret;

if (!vsi)
@@ -14323,10 +14343,8 @@ static struct i40e_vsi *i40e_vsi_reinit_setup(struct i40e_vsi *vsi)
* layout configurations.
*/
main_vsi = i40e_pf_get_main_vsi(pf);
- enabled_tc = main_vsi->tc_config.enabled_tc;
- main_vsi->tc_config.enabled_tc = 0;
main_vsi->seid = pf->main_vsi_seid;
- i40e_vsi_config_tc(main_vsi, enabled_tc);
+ i40e_vsi_reconfig_tc(main_vsi);

if (vsi->type == I40E_VSI_MAIN)
i40e_rm_default_mac_filter(vsi, pf->hw.mac.perm_addr);
@@ -15085,11 +15103,8 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit, bool lock_acqui
}
} else {
/* force a reset of TC and queue layout configurations */
- u8 enabled_tc = main_vsi->tc_config.enabled_tc;
-
- main_vsi->tc_config.enabled_tc = 0;
main_vsi->seid = pf->main_vsi_seid;
- i40e_vsi_config_tc(main_vsi, enabled_tc);
+ i40e_vsi_reconfig_tc(main_vsi);
}
i40e_vlan_stripping_disable(main_vsi);

--
2.43.0